Rhino is my CAD Workhorse
Rhino is my tried and true Cad app for everything I've designed. It is versatile and robust with all the tools to get the job done. It does not matter it I am needing a watertight design for my 3d printer, 1000% accurate to feed my mill, or just a PDF blueprint to convey my design to a client or manufacturer, rhino just gets the job done. The interface may not be all nice and shiny like some other CAD apps, but where production and results count, rhino will get you there. I've use many of the CAD apps out there, I always come back to Rhino. Rhino has always been a reliable program without all the crashes and bugginess that I get with other apps. Rhino's license policy is awesome. Mac or PC, one license runs it all. Not subscriptions and monthly fees. You buy it, use it and upgrade to the latest when you can. Simply awesome.